package com.atguigu.cloud.config;

import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClient;
import org.springframework.cloud.loadbalancer.core.RandomLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ReactorLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
import org.springframework.cloud.loadbalancer.support.LoadBalancerClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.web.client.RestTemplate;

@Configuration
@LoadBalancerClient(value = "cloud-payment-service",configuration = RestTemplateConfig.class)
public class RestTemplateConfig
{
    @Bean
    @LoadBalanced
    public RestTemplate restTemplate()
    {
        return new RestTemplate();
    }
	
	@Bean
	ReactorLoadBalancer<ServiceInstance> randomLoadBalancer(Environment environment,
	                                                        LoadBalancerClientFactory loadBalancerClientFactory) {
		String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
		
		return new RandomLoadBalancer(loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class), name);
	}
	
}